The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that permit efficient transfer of time and other information.The transmission device generates a physical layer frame having preambles and a payload that includes, in the preamble, time information representing time of a given position in a stream of physical layer frames and transmits the physical layer frame. The reception device receives the physical layer frame and performs processes using time information. The present technology is applicable, for example, to IP packet broadcasting.
Legal claims defining the scope of protection, as filed with the USPTO.
3. The transmission method as claimed in claim 2, wherein, if the flag information is set to “00,” the BaseBand header is not extended.
4. The transmission method as claimed in claim 2, wherein, if the flag information is set to “01,” the BaseBand header includes one byte in the optional field.
5. The transmission method as claimed in claim 2, wherein, if the flag information is set to “10,” the BaseBand header includes two bytes in the optional field.
6. The transmission method as claimed in claim 2, wherein the flag information is represented by two bits.
8. The reception device as claimed in claim 7, wherein, if the flag information is set to “00,” the BaseBand header is not extended.
9. The reception device as claimed in claim 7, wherein, if the flag information is set to “01,” the BaseBand header includes one byte in in the optional field.
10. The reception device as claimed in claim 7, wherein, if the flag information is set to “10,” the BaseBand header includes two bytes in the optional field.
11. The reception device as claimed in claim 7, wherein the flag information is represented by two bits.
12. The reception device as claimed in claim 7, wherein, in the case where the BaseBand header is extended, the optional field includes an extension length.
15. The reception method as claimed in claim 14, wherein, if the flag information is set to “00,” the BaseBand header is not extended.
16. The reception method as claimed in claim 14, wherein, if the flag information is set to “01,” the BaseBand header includes one byte in the optional field.
17. The reception method as claimed in claim 14, wherein, if the flag information is set to “10,” the BaseBand header includes two bytes in the optional field.
18. The reception method as claimed in claim 14, wherein the flag information is represented by two bits.
19. The reception method as claimed in claim 14, wherein, in the case where the BaseBand header is extended, the optional field includes an extension length.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
October 14, 2019
September 20, 2022
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